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3 years ago

Please help me out with this problem!!!!!!

Mathematics

1 answer:

guapka [62]3 years ago

4 0

Answer:

Step-by-step explanation:

The line with positive slope is 3x-5y≥15 and the line with negative slope is 2x+3y≤12.

This is because such inequalities represent half planes which are divided by the corresponding lines.

Put (0,0) in both lines to check if the origin lies in the shaded half plane or not.

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⦁ Find the length of the third angle of a triangle given that the first two angles are 35 and 70. Show your work.

UNO [17]

180 - 70 = 110
110 - 35 = 75
The third angle is 75

3 0

2 years ago

Mary and Mike went to the store to buy colored pencils for their science class.mike bought a 12-pack for 1.69,and Mary bought a

sweet-ann [11.9K]

12-pack for 1.69 is a better buy

Solution:

Given that, Mike bought a 12-pack for 1.69 and Mary bought a 24-pack for 3.18

We have to find which is the better buy

First we have to find the unit rate

Unit rate is cost of 1 pack

Mike bought a 12-pack for 1.69

Therefore,

Cost of 12 pack = 1.69

Cost of 1 pack is found by dividing 1.69 by 12

$cost\ of\ 1\ pack = \frac{1.69}{12} = 0.14083$

Thus unit rate of Mike is 0.14083 dollar per pack

Mary bought a 24-pack for 3.18

Cost of 24 pack = 3.18

Cost of 1 pack is found by dividing 3.18 by 24

$cost\ of\ 1\ pack = \frac{3.18}{24} = 0.1325$

Thus unit rate of Mary is 0.1325 dollars

On comparing both the unit rate

$0.14083>0.1325$

Thus unit rate of Mike is larger

Thus, 12-pack for 1.69 is a better buy

3 0

2 years ago

-64+ x = -90.3 PLEASE HELP ASAP!!:))

ludmilkaskok [199]

Answer:

add 64 to both sides

Step-by-step explanation:

x = -26.3

7 0

2 years ago

What are the values of 4?

ExtremeBDS [4]

Answer:

correspond to the four place values- ones, tens, hundreds and thousands. When a number is written in standard form, each group of digits is separated by a comma which forms a period.

3 0

2 years ago

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What is the area of a equilateral triangle with a height of 7 yards?

Andrej [43]

Approximately 21.22 yards.

3 0

3 years ago